Clocks and Power Control
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
8-17
summarizes the control bit settings for the different clock power modes.
8.7.2
Power Mode Descriptions
describes the clock frequency and chip functionality for each power mode.
8.7.3
Exiting from Low-Power Modes
Exiting from low-power modes occurs through an asynchronous interrupt or a synchronous interrupt
generated by the interrupt controller. Any enabled asynchronous interrupt clears the LPM bits but does not
change the PLPRCR[CSRC] bit.
Table 8-4. Power Mode Control Bit Settings
Power Mode
LPM[0:1]
CSRC
TEXPS
Normal-high
00
0
X
Normal-low (“gear”)
00
1
X
Doze-high
01
0
X
Doze-low
01
1
X
Sleep 10
X
X
Deep-sleep 11
X
1
Power-down
11
X
0
Table 8-5. Power Mode Descriptions
Operation Mode
SPLL
Clocks
Functionality
Power Pins that Need
to be Powered-Up
Normal-high
Active
Full frequency ÷
2
DFNH
Full functions not in use
are shut off
All On
Normal-low (“gear”)
Active
Full frequency ÷
2
DFNL+1
All On
Doze-high
Active
Full frequency ÷
2
DFNH
Enabled: RTC, PIT,
TB and DEC,
controller
Disabled: extended
core
(RCPU, BBC, FPU)
KAPWR, VDDSYN,
VDD, QVDDL, NVDDL,
IRAMSTBY
Doze-low
Active
Full frequency ÷
2
DFNL+1
KAPWR, VDDSYN,
VDD, QVDDL, NVDDL,
IRAMSTBY
Sleep
Active
Not active
Enabled: RTC, PIT, TB
and DEC
KAPWR, VDDSYN,
IRAMSTBY
Deep-sleep
Not active
Not active
KAPWR, IRAMSTBY
Power-down
Not active
Not active
KAPWR, IRAMSTBY
SRAM Standby
Not active
Not active
SRAM data
retention
IRAMSTBY
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...